My father, my God, the Rock my savior.

Psalm 89:19-29
Psalmist remember the promise and the anointment of the Lord on David.
I have found David my servant. My hand will sustain him; surely my arm will strength him. No enemy will subject him to tribute. I will crush his foes before him.
My faithful love will be with him, and through my name his horn will be exalted.
He will call out to me,' You are my father, my God, the Rock my savior.'
I will establish his line forever, his throne as long as the heavens endure.
Why?
Psalmist prayed and though the Lord promised will sustain the king David, so hope the Lord crush their enemies.
The Lord promised be the savior Christ Jesus. His throne will be forever. The Lord will establish Israel but might not as the psalmist thought.
Jesus give us his name that we may pray through him name, then the Lord will listen to our prayer. His name is holy and is with power. Through the name of God our horn will be exalted.
V19 refer to Nathan's message to David, 2 Samuel 7:8-16
How?
The Lord is my father, my God, the Rock my savior, I will follow Him , love Him forever.